package com.sky.controller.admin;

import com.sky.dto.DishDTO;
import com.sky.dto.DishPageQueryDTO;
import com.sky.result.PageResult;
import com.sky.result.Result;
import com.sky.service.DishService;
import com.sky.vo.DishVO;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cache.annotation.CacheEvict;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.Set;

@RestController("adminDishController")
@RequestMapping("/admin/dish")
@Api(tags = "菜品相关接口")
@Slf4j
public class DishController {

    /**
     * 新增菜品
     */
    @Autowired
    private DishService dishService;

    @Autowired
    private RedisTemplate redisTemplate;

    @PostMapping
    @ApiOperation("新增菜品")
    public Result insert(@RequestBody DishDTO dishDTO) {
        log.info("添加菜品,菜品数据{}", dishDTO);

        dishService.insertWithFlavor(dishDTO);

        // 清除缓存
        String key = "dish_" + dishDTO.getCategoryId();
        cleanCache(key);

        return Result.success();
    }

    /**
     * 菜品分页查询
     *
     * @param dishPageQueryDTO
     * @return
     */
    @GetMapping("/page")
    @ApiOperation("菜品分页查询")
    public Result<PageResult> page(DishPageQueryDTO dishPageQueryDTO) {
        log.info("菜品分页查询:{}", dishPageQueryDTO);
        PageResult pageResult = dishService.pageQuery(dishPageQueryDTO);//后绪步骤定义
        return Result.success(pageResult);
    }

    /**
     * 批量删除菜品
     * @param ids
     * @return
     */
    @DeleteMapping
    @ApiOperation("批量删除菜品")
    public Result delete(@RequestParam("ids") List<Long> ids) {
        log.info("批量删除菜品,菜品id:{}", ids);
        dishService.deleteByIds(ids);

        //将所有的菜品缓存数据清理掉，所有以dish_开头的key
        cleanCache("dish_*");


        return Result.success();
    }

    /**
     * 根据id查询菜品
     * @param id
     * @return
     */
    @GetMapping("/{id}")
    @ApiOperation("根据id查询菜品")
    public Result getById(@PathVariable("id") Long id) {
        log.info("修改菜品,菜品id:{}", id);
        DishVO dishVO = dishService.getById(id);

        return Result.success(dishVO);
    }

    /**
     * 修改菜品
     * @param dishDTO
     * @return
     */
    @PutMapping
    @ApiOperation("修改菜品")
    public Result update(@RequestBody DishDTO dishDTO) {
        log.info("修改菜品,菜品数据{}", dishDTO);
        dishService.update(dishDTO);

        //将所有的菜品缓存数据清理掉，所有以dish_开头的key
        cleanCache("dish_*");

        return Result.success();
    }

    /**
     * 启用、禁用菜品
     * @param status
     * @param id
     * @return
     */
    @PostMapping("/status/{status}")
    @ApiOperation("启用、禁用菜品")
    public Result startOrStop(@PathVariable("status") Integer status, @RequestParam("id") Long id) {
        log.info("启用、禁用菜品,菜品id:{},{}", id,status);
        dishService.startOrStop(status, id);

        //将所有的菜品缓存数据清理掉，所有以dish_开头的key
        cleanCache("dish_*");

        return Result.success();
    }

    /**
     * 根据分类id查询菜品
     * @param categoryId
     * @return
     */
    @GetMapping("/list")
    @ApiOperation("根据分类id查询菜品")
    public Result<List<DishVO>> list(@RequestParam("categoryId") Long categoryId) {
        log.info("根据分类id查询菜品,分类id:{}", categoryId);
        List<DishVO> dishVOS = dishService.getByCategoryId(categoryId);
        return Result.success(dishVOS);
    }


    /**
     * 清除redis中指定key(清理缓存)
     * @param keyName
     */
    private void cleanCache(String keyName){
        Set keys = redisTemplate.keys(keyName);
        redisTemplate.delete(keys);
    }

}
